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Merck
CN

Specification Sheet

Product Name
Potassium iodide puriss. p.a., reag. ISO, reag. Ph. Eur., ≥99.0%

Product Number
30315

Product Brand
sigald

CAS Number
7681-11-0

Molecular Weight
166.00

Test

Specification

ARGENTOMETR. TITRATION≥ 99.0 %
TITRATABLE BASE≤ 0.02 % (as KOH)
ASSAY99.0 - 100.5% (calc. to the dried substance)
SOLUBILITY (COLOR)Complying
SOLUBILITY (TURBIDITY)Complying
PH-TEST6 - 8
PH (METHOD)20C, 5 % in water
LOSS ON DRYING≤ 0.5 % 105C
REDUCING SUBSTANCESComplying
HEAVY METALS≤ 0.0005 % (as Pb)
BROMIDES AND CHLORIDES≤ 100 ppm (as Cl)
ARSENIC≤ 0.1 ppm
BARIUM≤ 0.002 %
CALCIUM≤ 0.001 %
IRON≤ 0.0003 %
MAGNESIUM≤ 0.001 %
SODIUM≤ 0.03 %
IODATE (IO3)≤ 2 ppm
TOTAL NITROGEN≤ 10 ppm
PHOSPHATE (PO4)≤ 10 ppm
SULFATE (SO4)≤ 10 ppm
THIOSULFATE (S2O3)≤ 0.005 % (S2O3)